ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,500,283, issued on Dec. 16, was assigned to SUMITOMO METAL MINING Co. LTD. (Tokyo).
"Method for treating alloy" was invented by Hirofumi Shouji (Niihama, Japan), Hiroshi Takenouchi (Niihama, Japan), Itsumi Matsuoka (Niihama, Japan), Shota Sanjo (Niihama, Japan), Takumi Matsugi (Niihama, Japan), Satoshi Asano (Niihama, Japan) and Shin-ichi Heguri (Niihama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method for obtaining a solution having a high concentration of nickel and/or cobalt from an alloy that contains copper as well as nickel and/or cobalt, in a waste lithium-ion battery. A method for treating an alloy comprises: a leaching...